81643664

素因数分解:

$2^4\times {\mathrm{349}}^1\times {\mathrm{14621}}^1$

素因数の和:14978

約数の個数: 20

約数和(自身を含む): 158648700

約数和(自身を除く): 77005036

約数列:

[1, 2, 4, 8, 16, 349, 698, 1396, 2792, 5584, 14621, 29242, 58484, 116968, 233936, 5102729, 10205458, 20410916, 40821832, 81643664]

約数ペア:

[(1, 81643664), (2, 40821832), (4, 20410916), (8, 10205458), (16, 5102729), (349, 233936), (698, 116968), (1396, 58484), (2792, 29242), (5584, 14621)]